Hampshire · England

Window Mastic in Crow

Window mastic in Crow from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Gaps left after new windows were fitted
  • Cold air getting in at the frame edge
  • Rain getting in at the frame or under the sill

Book window mastic in Crow

Window mastic for homes and businesses in Crow

Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. If you have leaking joints at the ends of sills and mastic that has split away from the wall, we can help.

Outdoor sealant needs dry, clean surfaces, so work on frames around Crow is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.

Whatever the size of the job, it’s backed by our one-year guarantee in Crow and across Hampshire.

Place
Crow (BH24)
Wider area
Hampshire
Cover
12 months on all our work
Quote
A clear price before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

DIY versus a professional finish

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

Honest limits

Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:

  • Faulty window hardware
  • Condensation trapped between the panes
  • Worn gaskets, brush seals or a door that has dropped

If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.

Surfaces we seal

  • uPVC windows
  • Window sills
  • Aluminium frames
  • Composite doors
  • Timber windows & doors
  • Patio & French doors

Windows and doors in Crow

The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Avon Tyrrell House (about 2.4 miles south-east) are a reminder that the area around Crow has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

For site and facilities teams at buildings such as Ringwood Junior School, its window and door frames need their mastic kept sound, just like a home’s.

Crow is in Hampshire. From the centre of Crow to the outskirts, window mastic is available for homes and businesses alike. Crow is one of 683 places in Hampshire where we work for window mastic. Southampton is on our list too, around 17 miles away.

Work in BH24 is quoted and booked the same way as anywhere else. That includes homes and businesses on Barrack Lane, Wood End Road and Crow Lane. Other places close to Crow include Upper Kingston (1 mile west), Hightown (1 mile north), Bagnum (1 mile south), Ringwood (1 mile north-west) and Poulner (1 mile north). Further out, we also cover Totton (13 miles north-east), Lymington (11 miles south-east), New Milton (7 miles south-east), Barton on Sea (8 miles south-east), Dibden Purlieu (15 miles east) and Marchwood (14 miles east).

Landmarks near Crow

Locally, jobs take us to homes and businesses close to Ringwood School and The Elm Tree Inn, among other places. Well-known places in the area include St Leonard's Hospital (4.3 miles west). For a walk, there’s Blashford Lakes and Linbrook Lake.

Map of Crow © OpenStreetMap contributors

How the visit works

On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Crow, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First, we confirm safe access to each frame.
  2. All the failed sealant is cut away.
  3. The surfaces are cleaned and left dry.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. We tool the joint so water runs off, then clear up.

Getting ready for the visit

  • Tell us if parking is tricky
  • Clear items away from the joints we’re working on
  • Plan for the work area to be out of bounds to pets and children

Getting a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.

Get a price

Advice

Quotes for window mastic in Crow

You’ll get a clear quote before we start. It takes into account:

  • Mould in or behind the old joints
  • Whether the work is at height
  • How much old sealant there is and how hard it is to remove
  • Any working-time requirements on site

Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.

Asking for a quote

To help us quote quickly, please include:

  • What the problem is, such as mould, gaps, leaks or cracking
  • Where the property is
  • Pictures of the joints, sent by email
  • Whether it’s a home or a business

We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.

Different surfaces, different methods

Composite doors

Composite doors are normally hung in an uPVC-type frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.

Timber windows & doors

Soft or rotten wood cannot be sealed successfully. If we find rot, we will tell you before going ahead, as a joiner will need to deal with it.

Landlord and commercial work in Crow

We work for landlords and letting agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.

From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

What we are called out for in Crow

Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.

Keep an eye out for any of the following:

  • Untidy mastic left by window fitters
  • Cracked internal joints between frame and plaster
  • Cracked or shrunken mastic around the frame
  • Damp patches on the reveal after heavy rain

Avon Tyrrell House, about 2.4 miles south-east, is one of the historic houses in the wider area around Crow.

What to look for in a quote

  • What product goes in the joint
  • What the quote includes, VAT included or not
  • What insurance they hold
  • How the colour is chosen

Our hiring checklist

Crow questions

Is there a guarantee on window mastic in Crow?

All our work, in Crow and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.

Is Crow within the area you cover?

Yes, Crow is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

What do you put in the joint?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Can you quote for more than one area?

Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.

Can landlords and businesses book you?

Yes. We work for householders, landlords, letting agents, businesses and hotels in Crow.

I’m a tenant. Can you help?

Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.

Where do you work from?

We are based in Crawley, and we work across South East England, London and Scotland.

How long before the joint can be used?

It depends on the product. We tell you how long to leave it before we go.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job